twynia

I have a 2007 C6 coupe. i noticed that some times when making a sharpe turn, leaving a stop and turning right or left there is a slight slip / jerk from rear end. I took it to a parking lot and at slow speed making tight (as tight as possible) circles, both to the right and left there is a jerk feeling and sometimes a tire will make a slight cherp. I did this with the traction control on and off, with the same results. most of the time the only person to notice this is me when I am driving. Is this normal and I am just **** or is this a concern? The car has 75,000 mi, and recently(about 2,000 mi ago) I had rear end fluid changed at chevy dealer ship.

RicK T

Do you know if they used the correct fluid, without friction modifier, and if they did the required figure-8's after filling?

twynia

They claimed to have used proper fluid and additives. they do a lot of vettes there and yes they did the figure 8' s .

jandmenter

Tighten up the main axle bolt..I think its a19mm socket size. This will correct..They loosen up after time..

jandmenter

Sorry 33mm bolt size not 19mm

RicK T

Assuming they did it correctly, you might have an actual clutch pak issue.

Might be worth checking just to be sure they used the correct fluid, again WITHOUT friction modifier. In case you need it, here's the TSB with all the info.

http://forums.corvetteforum.com/1564283516-post6.html


And should probably check the axle nuts just to be sure.

twynia

i checked the axle nuts at 140 foot pounds one was tight and the other took about 1/8 -1/4 turn, spoke to corvette specitality shop they said it sounds like normal wear for the miliage, but might wanna consider rebuild or new rear diff. in the future. any comments?

needtogofaster

I would think it is just the diff. Mine does that too. Most cars when you make sharp turns the inner wheel spins slower which the diff compinsates for that where with the vettes the tires continue to spin at the same speed so your tires will chirp and kinda fill like it is jumping. I'm no expert but that's what it sounds like to me.